ASD-STAN PREN 4550-4-2012 Aerospace series Pipe coupling 37 esign configuration Inch series Part 4 Female sealing ends (Edition P 2).pdf

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1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM prEN 4550-4 Edition P 2 October 2012 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATIONAvenue de Tervuren, 270 - B-1150 Brussels - Tel. 32 2 775 8126 - Fax. 32 2 775 8131 - www.asd-stan.orgICS: Supersedes Edition P

2、1 of September 2000 and will supersede EN 4550-4:2003 Descriptors: ENGLISH VERSION Aerospace series Pipe coupling, 37 Design configuration Inch series Part 4: Female sealing ends Srie arospatiale Systme de raccordement 37 Configuration gomtrique Srie inch Partie 4 : Extrmits dtanchit femelles Luft-

3、und Raumfahrt Rohrverschraubungen -Anschlusszapfen 37 Konstruktionsmae Inch-Reihe Teil 4: Dichtgeometrie This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the

4、needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or f

5、unctionally, without re-identification of the standard. After examination and review by users and formal agreement of ASD-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN).

6、The CEN national members have then to implement the EN at national level by giving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. Edition approved for publication 1 October 2012 Comments should be sent within six months after the date of p

7、ublication to ASD-STAN Mechanical Domain Copyright 2012 by ASD-STAN prEN 4550-4:2012 (E) 2 Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Dimensions Tolerances .3 4 Designation 4 Annex A (informative) Standard evolution form 5 Foreword This standard was reviewed by the Domain Technica

8、l Coordinator of ASD-STANs Mechanical Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval for Publication. prEN 4550-4:2012 (E) 3 1 Scope This standard defines the dimensions and toler

9、ances for the female sealing end of inch series pipe couplings, 37, for aerospace applications. Matched fluid system component shall have a male sealing end in accordance with EN 4550-1. 2 Normative references The following referenced documents are indispensable for the application of this document.

10、 For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 4550-1, Aerospace series Pipe coupling, 37 Design configuration Inch series Part 1: Male sealing ends, spherical 3 Dimensions Tolerances

11、 Key 1 R 0,10 to R 0,25 Figure 1 0,3 0,1 Ra 3,2 Ra 1,6 C prEN 4550-4:2012 (E) 4 Table 1 Dimensional code a Nominal diameter Thread A B D E F S 0,10 0,10 03 04,763 .375 0-24UNJF-3A 2,80 05,8705,94 08,2808,35 04,53 4,70 1,16 04 06,350 .437 5-20UNJF-3A 4,40 07,4707,54 09,6609,72 06,25 5,00 0,87 05 07,9

12、24 .500 0-20UNJF-3A 6,00 09,2209,29 11,2311,30 07,77 06 09,525 .562 5-18UNJF-3A 7,60 10,9010,97 12,6812,75 09,61 5,35 1,00 08 12,700 .750 0-16UNJF-3A 09,95 14,2014,27 17,2517,32 12,66 6,35 1,25 10 15,875 .875 0-14UNJF-3A 12,70 17,4517,52 20,1720,24 15,50 6,65 1,22 12 19,050 1.062 5-12UNJ-3A 15,90 20

13、,9120,98 24,6224,68 19,34 6,85 1,54 16 25,400 1.312 5-12UNJ-3A 22,25 27,3927,45 30,9731,03 25,64 7,30 1,58 aThis code corresponds to the nominal diameter given in 16thof inches within two digits. 4 Designation EXAMPLE Identity block EN4550-4-08 Number of this standard Dimensional code (see Table 1)

14、prEN 4550-4:2012 (E) 5 Annex A (informative) Standard evolution form MODIFICATION REASON AND VALIDATION Page 1, German title Before: “Rohrverschraubungen 37 Konstruktionsblatt Inch-Reihe Teil 4: Einfahrdichtungsen”. After: “Rohrverschraubung -Anschlusszapfen 37 Konstruktionsmae Inch-Reihe Teil 4: Di

15、chtgeometrie“. Translation in German was not correct Figure 1 page 4 Before: Dimension S was indicated as an absolute dimension (boxed dimension). After: Dimension S is indicated as a dimension with tolerance and tolerance 0,10 is added in Table 1 page 5. Incompatibility with another absolute dimens

16、ion. Figure 1 page 4 Before: Dimension 37 was indicated as an absolute dimension (boxed dimension). After: Dimension 37 is indicated as a dimension with tolerance 0,5. Incompatibility with another absolute dimension. Table 1 page 5 Before: Dimension A (hole) was 2,75 for -03 4,35 for -04 5,90 for -05 7,55 for -06 After: Dimension A is 2,80 for -03 4,40 for -04 6,00 for -05 7,60 for -06 New values allow the possibility to machine a straight hole into ferrules with welded end from -03 to -06 (as it is the case for straight nipples with welded end).

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